1891-97 Watermark Crown over NSW 1d Green Perf 10 horizontal pair error 'Imperforate Between and at Left', showing portion of adjoining unit at left, very fine and cancelled Kurrajong cds, JY 9 1891. The only recorded piece, and the most important item of New South Wales postage dues and a major world postage due rarity. BW ND2b cat AU$12500, SG D2a cat £6000
1891-97 Watermark Crown over NSW 5/- Green Perf 11 x 12 CTO with 'NSW' in concentric ovals quarter cancel, part OG with some gum staining. This perforation is only found CTO. BW ND35w, cat AU$750
1891-97 Watermark Crown over NSW 10/- Green Perf 10 CTO with 'NSW' in concentric ovals quarter-cancel, very fine with large part OG. BW ND36w, cat AU$150
1891-97 Watermark Crown over NSW 10/- Green Perf 12 x 10 variety 'Double Perforations' down left side (inner row partly blind), with gummed strips across top indicating a further perforation repair. Straight edge at right (outside partly blind perfs), part OG but heavily hinged, the only recorded example. BW ND37b, cat AU$1750
1891-97 Watermark Crown over NSW 20/- Green Perf 10 with wing margin at left, very fine with large part OG. Undercatalogued by SG at £350, BW ND40, cat AU$1250
1891-97 Watermark Crown over NSW 20/- Green Perf 12 x 10 large part OG but with perf missing at lower left. Undercatalogued by SG at £350, BW ND40, cat AU$1250